<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .red {
            width: 100px;
            height: 100px;
            background-color: brown;
        }

        .orange{
            width: 200px;
            height: 200px;
            background-color: orange;
        }
    </style>
</head>
<body>
    <div class = "red">div1</div>
    <div class = "orange">div2</div>
</body>
</html>